Jude Lane - from hen harriers to gannets |
FASCINATING
insights into the flight behaviour of gannets were a feature of the presentation to this
month’s York BTO regional conference by Jude
Lane.
Jude,
who has a MSc in Biodversity and who has worked for the RSPB ( monitoring and protecting breeding hen
harriers on upland estates), is now in her third year as a PhD student at Leeds University.
Her
work on gannets is largely focusing on the colonies at Ailsa Cragg and Bass
Rock, and she is using GPS tracking technology to build on observation from
boats (which can only be conducted in favourable weather).
Her particular interests are in the varying heights at which gannets fly and the behaviour of immature birds prior to breeding.
The
commuting flights of gannets are typically “fast and straight” while their
foraging flights are “short and twisting”.
When
diving for fish, females favour a deep v-shaped plunge, while males are more
likely to adopt a shallower u-shape.
When
they make outward foraging flights from nests, the height above water averages
19.8 metres while, on return (while carrying food), the height dips to 13.4
metres.
Jude
is particularly keen to discover the potential impact of existing and proposed wind
farms on gannets - both collision risk and displacement from their preferred fishing waters.
Once
completed and published, her research is likely to be of significant interest to wind energy
developers and Government authorities as well as to environmentalists and groups
such as the BTO and the RSPB.
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